strange - just assumed every panel had a cashew, never saw one without

try right clicking between 2 widget icons, try between the Kmenu and Lancelot ones, there should be a point directly between where the "remove this panel" option is offered. same if clicking on the left most border of the panel

You can see the tight and transparent panel(widget?) with the tasks buttons. The label "1. Internet" disappeared after the Smooth Tasks was uninstalled by me (#apt-get remove kde-smooth-tasks<etc...>). Old wallpaper is gone with Smoot Tasks too Also I want to remove the bottom panel (there is a blue button labeled "PCLinuxOS K FullMonty" and a Lancelot), cause it is not so useful, and there is a bug with repainting it.